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CHAR-LES KORN, OF WURTSBOROUGl-l, NEW YORK. Letters Patent No. 65,919, date-'.1 Jam.' 18, 186i".

IMPROVED MACHINE P OR DRESSING LEATHER.

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TO ALL WHOM IT MAY CONGERN:

Be itYV known thatV I, CIIRLES KORN, of Wurtsborongh, Sullivanconnty, New York7 have invented a new and improved Machine for Dressing Leather; and I do hereby declare that the following is a full, clear, Vand exact description thereof, which will enable others skilled in the artto make and use the same, reference being had tothe accompanying drawings, forming part of this specification, in which- Figure 1 represents a plan or top view of my improved machine for dressing leather.

Figure 2 is a side view of the saine.

Figure V3 is an inverted detail'plan view of the same.

Figure 4 is a detail side view, partly in section, of the saine.

Similar letters of reference indicate corresponding parts.

This invention relates to certain improvements on a rnachine for dressing leather for which Letters Patent were granted to me on the twenty-fifth day of June, 1861.

The' invention consists in the arrangement of a cleaner and Sharpener, by which each knife, which is secured to an endless apron, is cleaned and sharpened after it has served to shave or whiten'"a skin of leather. The said Sharpener and cleaner are combined in one sliding-block, and are made self-acting, and can be adjusted to knives of diiferent sizes. When a knife has been cleaned and sharpened the sliding-block returns to position to operate the next knife, and so on, the whole device operating automatically, sorthat only the endless apron need be turned to set it all in operation.

A represents an endless apron, which is stretched around rollers B and C, that are hung in an inclined frame, D, as is clearly shown in the drawings, and substantially as described in the aforesaid Letters Patent. On the face of the apron are arranged any suitable number of knives E E, which are'set obliquely across the face of the belt, as is clearly shown in tig. 1. F F are two or more rods, which are-tirmly secured on the frame D above the apron A, and parallel with each other" They are both secured at each end in a block or bar, a, which slides on an upright bar, b, that is part of, or rxnly attached to, the frame; and by a set-screw, c, they can be held in any position on` the said barb, and adjusted up and down, as may be desired. It will be seen that these rods are arranged obliquely across the apron A, and that they cross about at right angles to the direction of the knives/E. On the rod F is arranged a block, Gr, which slides freely on the said rod. It has a guide or guides, d, by which it' is steadied on the rod F. The block- G is arranged above that side ofthe apron on which the most advanced end of the knife is, as shown in tig.` 1,'the direction of the apron being indicated by 4an arrow in fig..1. As the apron turns the most advanced end of the oblique knife comes against the block G1, or would come in contact with the same if a slot or groove had not been provided in the bleek to receive the upper edge of the knife, (see fig. As the apron continues to move the front ofthe knife presses against the rear edge of the slot in the block, and forces the said block gradually towards the opposite end of the ba'rs F F. ylhefront or cutting edge of the knife is pressed against a cleaner, e, which is fixed in the under side of the block G, and which is made of leather orv other suitable material.` j' is an upright steel bar, which is pivcted to the block G by a'pin, g, (see tig. 4,) and the lower end of which is pressed, by one or more springs L, against the front edge 4of the knife. This steel bar sharpens the cutting edge of the knife as the block G passes over the same. z' is a steel plate, which s pivoted to the front of the block G, and which is pressed by a spring, j, to the knife. When the block moves,`this plate moves over the resharpened edge of the knife and smooths the same, preventing roughness or corrugations of the cutting edge. The plate f is slotted, and the plate z' is secured, so that they both can easily yield to any fixed obstructions that rnay have accumulated on the knife, although the clearer will free the same to all probability as completely es possible. The bars f and t' are both pivoted, not directly to the block G,'but to a plate, k, which is slotted, and 'which is secured to the front of the block by means of screws Z passing through the slots, so that, by means of this slotted plate, the bars f and t' can be gradually lowered to accommodate the edge of the knife as the same is worn off, for which purpose the bars F F are also arranged up and down adjustable. m is a spiral'spring, xed around the barF or F ou that side towards which the block is moved on the bar F by the knife. Thissprin'g is compressed by the block when the same is thus moved. by the oblique knife, and when the latter has passed the spring expands and throws the block baci: to its original position, a bolster, n, being secured' to the bar Fte receive the shock.

` Having thus described my invention, what I claim as new, and desire to secure by Letters ]a.te11t,is -v 1. The shnrpenersf and z, when arranged 'on n sliding-block, G, either separate or in combination with the cleaner e, all made and operating substantially as herein shown and described.

2. The knife or knives E, when secured obliquely upon an endless apron, and when'arrnnged in c0mbiuation with the obliquely-set frame F F and grooved block G in such a menne!" that the said block is nioved by the knife, substantially as set forth.

3. The up-and-down adjustable frame F F', in combination with the sliding-bloei; G and knieor knives E, all made and operating substantially as herein show-n and described. I 4. The block G and knife or knives E, in combination with the spring m amd frame F F', all made und operating substantially as herein shown and described.

5. The knife or knives E, when arranged on an endless apron, A, in combination 'with the sliding-block Gr, and sharpeners'f and z', and ele-nner e, all made and operating substantially :ts herein shown `and described.

CHARLES KORN..

Witnesses:

WLLF. MCNAMARA, ALEX. F. ROBERTS. 

